Put 2 tablespoons of the thyme in a bowl with the paprika and ... Put the onions into a large, deep roasting tin, sit the lamb on top and roast for about 40 minutes. Reduce the oven temperature ...

Add the rosemary and thyme, then mix with enough olive oil ... Baste the meat with the liquid, then cover the lamb with foil. Roast for 3–3½ hours, until cooked to your liking.